<template>
	<view class="login-container">
		<uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
    <button type="primary" class="btn-login" @click="getUserInfo">一键登录</button>
    <text class="tips-text">登陆后尽享更多权益</text>
	</view>
</template>

<script>
  import { mapMutations,mapState } from 'vuex'
 	export default {
		data() {
			return {
				
			};
		},
    computed: {
      ...mapState('m_user', ['redirectInfo'])
    },
    methods: {
      ...mapMutations('m_user', ['updataUserInfo', 'updataToken', 'updateRedirectInfo']),
      getUserInfo() {
        uni.getUserProfile({
          desc: '您的信息仅作为个人展示噢',
          success: (res) => {
            this.updataUserInfo(res.userInfo)
            this.getToken(res)
          },
          fail: (res) => {
            uni.$showMsg('您取消了登录授权！')
          }
        })
      },
      async getToken(info) {
        const [err, res] = await uni.login().catch(err => err)
        if(err || res.errMsg !== 'login:ok') return uni.$showMsg('登陆失败！')
        const query = ({
          code: res.code,
          encryptedData: info.encryptedData,
          iv: info.iv,
          rawData: info.rawData,
          signature: info.signature
        })
        // token返回得到 "400, 缺少必要数据" , 老师不对外公开这个接口, 只能做个假数据了
        const {data: loginResult} = await uni.$http.post('/api/public/v1/users/wxlogin', query)
        if(loginResult.meta.status !== 400) return uni.$showMsg('登陆失败！')
        const token =
      'Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOjEyLCJpYXQiOjE1MjU0MDIyMjMsImV4cCI6MTUyNTQ4ODYyM30.g-4GtEQNPwT_Xs0Pq7Lrco_9DfHQQsBiOKZerkO-O-o'
        this.updataToken(token)
        this.navigateBack()
      },
      navigateBack() {
        if(this.redirectInfo && this.redirectInfo.openType === 'switchTab'){
          uni.switchTab({
            url: this.redirectInfo.from,
            complete: () => {
              this.updateRedirectInfo(null)
            }
          })
        }
      }
    }
	}
</script>

<style lang="scss">
.login-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 750rpx;
  background-color: #f8f8f8;
  position: relative;
  overflow: hidden;
  .btn-login {
    background-color: #C00000;
    width: 90%;
    margin: 15px 0;
    border-radius: 100px;

  }
  
  &::after {
    content: ' ';
    background-color: white;
    display: block;
    width: 100%;
    height: 40px;
    position: absolute;
    bottom: 0;
    left: 0;
    border-radius: 100%;
    transform: translateY(50%)
  }
  
  .tips-text {
    font-size: 12px;
    color: gray;
  }
}
</style>
